What is one effect of valvular deformities on mobility?

Valvular deformities can significantly impact mobility due to the way they affect cardiovascular function. When the heart valves are not functioning properly, it can lead to a variety of symptoms, including reduced blood flow, which can result in fatigue, weakness, and pain during movement. This pain often occurs as a consequence of inadequate oxygen delivery to the muscles when the heart struggles to pump efficiently. Therefore, individuals with valvular deformities may experience discomfort or pain when engaging in physical activity, which can lead to decreased mobility overall.

In contrast, the other options do not align with the typical effects of such conditions. Increased mobility is unlikely because the pain and fatigue caused by valvular issues typically reduce a person's ability to move freely. Likewise, there is an increased risk of falls associated with decreased mobility and potential dizziness or weakness from inadequate blood circulation, contradicting the idea of a decreased risk of falls. Improved stability is also not a valid effect since instability can arise from the overall physical weaknesses and coordination issues linked to the fatigue and discomfort caused by valvular deformities.